Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients

Detalhes bibliográficos
Autor(a) principal: Canella,Richard Prazeres
Data de Publicação: 2016
Outros Autores: Adam,Guilherme Pradi, Castillo,Roberto André Ulhôa de, Codonho,Daniel, Ganev,Gerson Gandhi, Vicenzi,Luiz Fernando de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Ortopedia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162016000200200
Resumo: OBJECTIVE: To correlate the angles between the acetabulum and the proximal femur in symptomatic patients with femoroacetabular impingement (FAI), using computed tomography (CT). METHODS: We retrospectively evaluated 103 hips from 103 patients, using multislice CT to measure the acetabular age, acetabular version (in its supraequatorial portion and in its middle third), femoral neck version, cervical-diaphyseal and alpha angles and the acetabular depth. For the statistical analysis, we used the Pearson correlation coefficient. RESULTS: There were inverse correlations between the following angles: (1) acetabular coverage versus alpha angle (p = 0.019); (2) acetabular version (supraequatorial) versus alpha angle (p = 0.049). For patients with femoral anteversion lower than 15 degrees: (1) acetabular version (supraequatorial) versus alpha angle (p = 0.026); (2) acetabular version (middle third) versus alpha angle (p = 0.02). For patients with acetabular version (supraequatorial) lower than 10 degrees: (1) acetabular version (supraequatorial) versus alpha angle (p = 0.004); (2) acetabular version (middle third) versus alpha angle (p = 0.009). CONCLUSION: There was a statistically significant inverse correlation between the acetabular version and alpha angles (the smaller the acetabular anteversion angle was, the larger the alpha angle was) in symptomatic patients, thus supporting the hypothesis that FAI occurs when cam and pincer findings due to acetabular retroversion are seen simultaneously, and that the latter alone does not cause FAI, which leads to overdiagnosis in these cases.
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spelling Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patientsHipFemoroacetabular impingementX-ray computed tomography OBJECTIVE: To correlate the angles between the acetabulum and the proximal femur in symptomatic patients with femoroacetabular impingement (FAI), using computed tomography (CT). METHODS: We retrospectively evaluated 103 hips from 103 patients, using multislice CT to measure the acetabular age, acetabular version (in its supraequatorial portion and in its middle third), femoral neck version, cervical-diaphyseal and alpha angles and the acetabular depth. For the statistical analysis, we used the Pearson correlation coefficient. RESULTS: There were inverse correlations between the following angles: (1) acetabular coverage versus alpha angle (p = 0.019); (2) acetabular version (supraequatorial) versus alpha angle (p = 0.049). For patients with femoral anteversion lower than 15 degrees: (1) acetabular version (supraequatorial) versus alpha angle (p = 0.026); (2) acetabular version (middle third) versus alpha angle (p = 0.02). For patients with acetabular version (supraequatorial) lower than 10 degrees: (1) acetabular version (supraequatorial) versus alpha angle (p = 0.004); (2) acetabular version (middle third) versus alpha angle (p = 0.009). CONCLUSION: There was a statistically significant inverse correlation between the acetabular version and alpha angles (the smaller the acetabular anteversion angle was, the larger the alpha angle was) in symptomatic patients, thus supporting the hypothesis that FAI occurs when cam and pincer findings due to acetabular retroversion are seen simultaneously, and that the latter alone does not cause FAI, which leads to overdiagnosis in these cases.Sociedade Brasileira de Ortopedia e Traumatologia2016-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162016000200200Revista Brasileira de Ortopedia v.51 n.2 2016reponame:Revista Brasileira de Ortopedia (Online)instname:Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)instacron:SBOT10.1016/j.rboe.2016.02.001info:eu-repo/semantics/openAccessCanella,Richard PrazeresAdam,Guilherme PradiCastillo,Roberto André Ulhôa deCodonho,DanielGanev,Gerson GandhiVicenzi,Luiz Fernando deeng2016-04-13T00:00:00Zoai:scielo:S0102-36162016000200200Revistahttp://www.rbo.org.br/https://old.scielo.br/oai/scielo-oai.php||rbo@sbot.org.br1982-43780102-3616opendoar:2016-04-13T00:00Revista Brasileira de Ortopedia (Online) - Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)false
dc.title.none.fl_str_mv Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients
title Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients
spellingShingle Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients
Canella,Richard Prazeres
Hip
Femoroacetabular impingement
X-ray computed tomography
title_short Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients
title_full Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients
title_fullStr Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients
title_full_unstemmed Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients
title_sort Overdiagnosing of femoroacetabular impingement: correlation between clinical presentation and computed tomography in symptomatic patients
author Canella,Richard Prazeres
author_facet Canella,Richard Prazeres
Adam,Guilherme Pradi
Castillo,Roberto André Ulhôa de
Codonho,Daniel
Ganev,Gerson Gandhi
Vicenzi,Luiz Fernando de
author_role author
author2 Adam,Guilherme Pradi
Castillo,Roberto André Ulhôa de
Codonho,Daniel
Ganev,Gerson Gandhi
Vicenzi,Luiz Fernando de
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Canella,Richard Prazeres
Adam,Guilherme Pradi
Castillo,Roberto André Ulhôa de
Codonho,Daniel
Ganev,Gerson Gandhi
Vicenzi,Luiz Fernando de
dc.subject.por.fl_str_mv Hip
Femoroacetabular impingement
X-ray computed tomography
topic Hip
Femoroacetabular impingement
X-ray computed tomography
description OBJECTIVE: To correlate the angles between the acetabulum and the proximal femur in symptomatic patients with femoroacetabular impingement (FAI), using computed tomography (CT). METHODS: We retrospectively evaluated 103 hips from 103 patients, using multislice CT to measure the acetabular age, acetabular version (in its supraequatorial portion and in its middle third), femoral neck version, cervical-diaphyseal and alpha angles and the acetabular depth. For the statistical analysis, we used the Pearson correlation coefficient. RESULTS: There were inverse correlations between the following angles: (1) acetabular coverage versus alpha angle (p = 0.019); (2) acetabular version (supraequatorial) versus alpha angle (p = 0.049). For patients with femoral anteversion lower than 15 degrees: (1) acetabular version (supraequatorial) versus alpha angle (p = 0.026); (2) acetabular version (middle third) versus alpha angle (p = 0.02). For patients with acetabular version (supraequatorial) lower than 10 degrees: (1) acetabular version (supraequatorial) versus alpha angle (p = 0.004); (2) acetabular version (middle third) versus alpha angle (p = 0.009). CONCLUSION: There was a statistically significant inverse correlation between the acetabular version and alpha angles (the smaller the acetabular anteversion angle was, the larger the alpha angle was) in symptomatic patients, thus supporting the hypothesis that FAI occurs when cam and pincer findings due to acetabular retroversion are seen simultaneously, and that the latter alone does not cause FAI, which leads to overdiagnosis in these cases.
publishDate 2016
dc.date.none.fl_str_mv 2016-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162016000200200
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1016/j.rboe.2016.02.001
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ortopedia e Traumatologia
publisher.none.fl_str_mv Sociedade Brasileira de Ortopedia e Traumatologia
dc.source.none.fl_str_mv Revista Brasileira de Ortopedia v.51 n.2 2016
reponame:Revista Brasileira de Ortopedia (Online)
instname:Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)
instacron:SBOT
instname_str Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)
instacron_str SBOT
institution SBOT
reponame_str Revista Brasileira de Ortopedia (Online)
collection Revista Brasileira de Ortopedia (Online)
repository.name.fl_str_mv Revista Brasileira de Ortopedia (Online) - Sociedade Brasileira de Ortopedia e Traumatologia (SBOT)
repository.mail.fl_str_mv ||rbo@sbot.org.br
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